Nouns

(n)birththe time when something begins (especially life)“they divorced after the birth of the child”, “his election signaled the birth of a new age”
(n)birth, nativity, nascency, nascencethe event of being born“they celebrated the birth of their first child”
(n)parturition, birth, giving birth, birthingthe process of giving birth
(n)parentage, birththe kinship relation of an offspring to the parents
(n)birtha baby born; an offspring“the overall rate of incidence of Down's syndrome is one in every 800 births”

Verbs

(v)give birth, deliver, bear, birth, havecause to be born“My wife had twins yesterday!”